Determining the Effect of Smartphone Alerts and Warnings on Older-Adult Street-Crossing Behavior
Research has shown that older pedestrians have more difficulty making road-crossing decisions than younger adults. This presents an opportunity for vehicle-to-pedestrian (V2P) communication to assist older adults’ street-crossing decisions. The authors developed ability-based permissive alerts (safe to cross) and prohibitive warnings (not safe to cross) for a smartphone in a virtual street-crossing environment. The authors conducted a between-subjects study with 66 participants ages 65-84 to understand the effects of these alerts and warnings. The authors found differences between the permissive alerts and prohibitive warnings: (1) permissive participants were more likely to take smaller gaps than control participants (prohibitive had no effect); (2) permissive participants were more compliant with alerts (Cohen’s Kappa: .80) than prohibitive participants (Kappa: .50); and (3) 10/22 prohibitive participants reported the warnings as annoying (none for permissive). These findings give insights into V2P design and raise questions about how V2P alerts affect older-adult street-crossing behavior.
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Supplemental Notes:
- This document was sponsored by the U.S. Department of Transportation, University Transportation Centers Program. Supporting datasets available at: https://doi.org/10.7910/DVN/J78UQH; https://rosap.ntl.bts.gov/view/dot/56623
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Corporate Authors:
University of Iowa, Iowa City
Department of Computer Science
Iowa City, IA United States 52242Safety Research Using Simulation University Transportation Center (SaferSim)
University of Iowa
Iowa City, IA United States 52242Office of the Assistant Secretary for Research and Technology
University Transportation Centers Program
Department of Transportation
Washington, DC United States 20590 -
Authors:
- Rector, Kyle
- 0000-0003-4607-0920
- Kearney, Joseph
- 0000-0002-0443-8152
- Plumert, Jodie
- 0000-0002-2150-7922
- Malik, Jeehan
- 0000-0002-0462-991X
- Parr, Morgan Di Napoli
- 0000-0003-3248-9640
- Flathau, Jessica
- 0000-0001-7807-303X
- Publication Date: 2020-3
Language
- English
Media Info
- Media Type: Digital/other
- Edition: Final Report
- Features: Figures; Photos; References; Tables;
- Pagination: 45p
Subject/Index Terms
- TRT Terms: Aged; Behavior; Decision making; Mobile communication systems; Pedestrian movement; Pedestrians; Smartphones; Warning devices
- Subject Areas: Data and Information Technology; Highways; Pedestrians and Bicyclists; Safety and Human Factors;
Filing Info
- Accession Number: 01737138
- Record Type: Publication
- Contract Numbers: 69A3551747131
- Files: UTC, NTL, TRIS, ATRI, USDOT
- Created Date: Apr 23 2020 9:57AM